Want selected Choice Label from selected dropdown

Hi ,

I want choice label  value also in drop down. But as per dropdown api we can save only choice value.

a!dropdownField(
label: "Existing Tests",
placeholderLabel: "-- Select Test --",
choiceLabels: local!existingTests.name,
choiceValues: local!existingTests.id,
value: local!selectedTest,
saveInto: {
local!selectedTest,
a!save(
ri!selectedTestId,
local!selectedTest
),
a!save(
local!gridSelection.selected,
null
)
},
required: true()
),

how can i get this ?